Hi all. I see the following warning on an eeePC 900 (AR5001) running 2.6.31-rc6 after a suspend/resume cycle: [ 292.377941] ------------[ cut here ]------------ [ 292.377976] WARNING: at net/mac80211/mlme.c:2292 ieee80211_sta_work+0x89/0xc39 [mac80211]() [ 292.377981] Hardware name: 900 [ 292.377984] Modules linked in: arc4 ecb snd_hda_codec_realtek ath5k snd_hda_intel snd_hda_codec mac80211 snd_pcm_oss snd_mixer_oss usb_storage ath snd_hwdep battery snd_pcm snd_timer ac cfg80211 snd soundcore snd_page_alloc thermal button processor uhci_hcd ehci_hcd [ 292.378327] Pid: 866, comm: phy0 Tainted: G M 2.6.31-rc6-eee #8 [ 292.378331] Call Trace: [ 292.378345] [<c101d13a>] ? warn_slowpath_common+0x5d/0x70 [ 292.378354] [<c101d158>] ? warn_slowpath_null+0xb/0xd [ 292.378379] [<f87e8ab0>] ? ieee80211_sta_work+0x89/0xc39 [mac80211] [ 292.378398] [<f8872784>] ? ath5k_hw_reset+0xfdd/0xff1 [ath5k] [ 292.378417] [<f886b94c>] ? ath5k_hw_set_imr+0x14d/0x156 [ath5k] [ 292.378433] [<f8873c52>] ? ath5k_beacon_config+0x16c/0x173 [ath5k] [ 292.378449] [<f8873f85>] ? ath5k_txq_cleanup+0x19b/0x1b5 [ath5k] [ 292.378457] [<c10199da>] ? __wake_up+0x1d/0x3d [ 292.378466] [<c102a529>] ? insert_work+0x8f/0x96 [ 292.378473] [<c102a777>] ? queue_work_on+0x24/0x2b [ 292.378480] [<c102a7a5>] ? queue_work+0x1a/0x39 [ 292.378506] [<f87e64dc>] ? ieee80211_mlme_notify_scan_completed+0x40/0x66 [mac80211] [ 292.378532] [<f87e3caa>] ? ieee80211_scan_completed+0x2ef/0x2fc [mac80211] [ 292.378539] [<c102aaad>] ? worker_thread+0x15c/0x1fd [ 292.378564] [<f87e8a27>] ? ieee80211_sta_work+0x0/0xc39 [mac80211] [ 292.378572] [<c102d8e0>] ? autoremove_wake_function+0x0/0x29 [ 292.378579] [<c102a951>] ? worker_thread+0x0/0x1fd [ 292.378586] [<c102d67f>] ? kthread+0x68/0x6d [ 292.378592] [<c102d617>] ? kthread+0x0/0x6d [ 292.378600] [<c1002fb3>] ? kernel_thread_helper+0x7/0x10 [ 292.378605] ---[ end trace 7349ad9bfff515b3 ]--- A very similar warning is also seen with compat-wireless pulled 9 days ago: Aug 10 20:08:35 archeee kernel: [ 1440.840885] ------------[ cut here ]------------ Aug 10 20:08:35 archeee kernel: [ 1440.840932] WARNING: at /home/fcomolli/SRC/src/compat-wireless-2.6.31-rc4/net/mac80211/mlme.c:2292 ieee80211_sta_work+0x97/0xd30 [mac80211]() Aug 10 20:08:35 archeee kernel: [ 1440.840939] Hardware name: 900 Aug 10 20:08:35 archeee kernel: [ 1440.840942] Modules linked in: uvcvideo videodev v4l1_compat arc4 ecb ath5k mac80211 ath cfg80211 Aug 10 20:08:35 archeee kernel: [ 1440.840961] Pid: 3218, comm: phy3 Tainted: G M W 2.6.31-rc5 #1 Aug 10 20:08:35 archeee kernel: [ 1440.840966] Call Trace: Aug 10 20:08:35 archeee kernel: [ 1440.840978] [<c1024359>] warn_slowpath_common+0x65/0x7c Aug 10 20:08:35 archeee kernel: [ 1440.841015] [<f848b2af>] ? ieee80211_sta_work+0x97/0xd30 [mac80211] Aug 10 20:08:35 archeee kernel: [ 1440.841023] [<c102437d>] warn_slowpath_null+0xd/0x10 Aug 10 20:08:35 archeee kernel: [ 1440.841058] [<f848b2af>] ieee80211_sta_work+0x97/0xd30 [mac80211] Aug 10 20:08:35 archeee kernel: [ 1440.841069] [<c101f49b>] ? __wake_up+0x2f/0x56 Aug 10 20:08:35 archeee kernel: [ 1440.841076] [<c101f4a9>] ? __wake_up+0x3d/0x56 Aug 10 20:08:35 archeee kernel: [ 1440.841086] [<c1032410>] ? insert_work+0x96/0x9f Aug 10 20:08:35 archeee kernel: [ 1440.841095] [<c103266f>] ? __queue_work+0x32/0x49 Aug 10 20:08:35 archeee kernel: [ 1440.841103] [<c10326ad>] ? queue_work_on+0x27/0x2f Aug 10 20:08:35 archeee kernel: [ 1440.841109] [<c1032e3b>] ? queue_work+0x2d/0x45 Aug 10 20:08:35 archeee kernel: [ 1440.841150] [<f849a9ac>] ? ieee80211_mesh_notify_scan_completed+0x4d/0x64 [mac80211] Aug 10 20:08:35 archeee kernel: [ 1440.841185] [<f84860ce>] ? ieee80211_scan_completed+0x327/0x32f [mac80211] Aug 10 20:08:35 archeee kernel: [ 1440.841220] [<f84861d5>] ? ieee80211_scan_work+0xb5/0x171 [mac80211] Aug 10 20:08:35 archeee kernel: [ 1440.841229] [<c1032981>] worker_thread+0x15d/0x204 Aug 10 20:08:35 archeee kernel: [ 1440.841265] [<f848b218>] ? ieee80211_sta_work+0x0/0xd30 [mac80211] Aug 10 20:08:35 archeee kernel: [ 1440.841274] [<c1035b23>] ? autoremove_wake_function+0x0/0x2f Aug 10 20:08:35 archeee kernel: [ 1440.841282] [<c1032824>] ? worker_thread+0x0/0x204 Aug 10 20:08:35 archeee kernel: [ 1440.841289] [<c10358b7>] kthread+0x63/0x68 Aug 10 20:08:35 archeee kernel: [ 1440.841296] [<c1035854>] ? kthread+0x0/0x68 Aug 10 20:08:35 archeee kernel: [ 1440.841305] [<c10030b3>] kernel_thread_helper+0x7/0x10 Aug 10 20:08:35 archeee kernel: [ 1440.841310] ---[ end trace bc8f70f38f66567f ]--- The effect is that after the warning the interface is unusable until disabled and reenabled with the rfkill switch. The warning is new in the 31-rc series but the effect was present in previous versions (at least it probably happened with the 29.x series - I skipped the 30.x kernels). The bug is quite easy to reproduce. Regards, Fabio -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
